It interacts with your creatures in almost the same way it interacts with your instants and sorceries: by copying them
You dont want to let the player pulling ahead draw several cards, but you definitely dont want them dropping something for free from their hand
Thats sort of small when you consider it, but remember that this form is a projection of Emrakul onto the plane, not Emrakul herself
In the mainline Pokmon games, Poochyena often serves as an early-game encounter, familiar to trainers as one of the first Dark-types they might catch
Double rare cards are, more or less, the same level of rarity as the Pokemon V, VSTAR, and VMAX cards that you may remember from the Pokemon TCG Sword & Shield sets
Some, like those above, are as trustworthy as ever - but others aren't worth your time, either because the results are unreliable, they put you at too much risk of damaging your cards, or both